i saw a post recently that said google includes facebook shares, likes, google + and pinterest pins in its algorigthm to rank sites. its not just backlinks anymore. if this is true, will buying google+ and pinterest pins on fiverr help my search engine rankings? or are these just a waste of money since they are not real people who will continue to spread the word about my site? i ask becasue right now i have a lot of organic traffic coming from pinterest. but dont want to waste money also if it wont boost repins on that site too.